In a mixed Virtual Chassis of EX4600 and EX4300 switches, the Junos OS release dictates whether
the EX4600 is best used in the primary role. For Junos OS releases between 13.2X50-D10 and
14.1X53-D25, use the use the EX4300 as a primary and backup RE in the Virtual Chassis. For Junos
OS Release 14.1X53-D25 and later, the EX4600 is fully supported as the primary in a mixed Virtual
Chassis of EX4600 and EX4300.
System Soware
EX Series switches run the Junos operang system (OS), which provides Layer 2 and Layer 3 switching,
roung, and security services. An EX4600 switch ships with Junos OS installed on it. The same Junos OS
code base that runs on EX4600 switches also runs on all Juniper Networks QFX Series devices, M
Series, MX Series, and T Series routers.
You manage the switch by using the Junos OS CL), which is accessible through the console and out-of-
band management ports on the switch.
All models of the EX4600 run on Junos OS Release 13.2X51-D25 or later.
EX4600 Switch Models
The EX4600 switches have a base conguraon of 24 small form-factor pluggable plus (SFP+) ports and
4 quad small-form-factor pluggable (QSFP+) ports. You can increase the number of ports by using
expansion modules. All EX4600 switches, except the EX4600-40F-S switch, ship with two power
supplies and ve fans installed by default. Expansion modules are oponal components that must be
separately ordered.
Table 1 on page 5 lists the EX4600 switch conguraons.
Table 1: EX4600 Switches
Product Number Ports Number of
Expansion
Modules
Supported
Power Supply Airow
EX4600-40F-AFI 24 SFP+ and 4 QSFP+ 2 AC Air In (FRU-to-
port)
EX4600-40F-AFO 24 SFP+ and 4 QSFP+ 2 AC Air Out (port-to-
FRU)
5
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